Soodla bridge renovation

Newspaper Teeleht No. 3-4 (63,64) December 2010

Newspaper Teeleht No. 3-4 (63,64) December 2010 The Soodla Bridge is located on the side road No 11105 in the Harju county, Anija rural municipality, on the Kiiu-Soodla road at Soodla river, km 9,122. The old bridge was built in 1953 as a monolithic reinforced concrete beam-bridge.
During the renovation it was planned to bring the bridge gauge to 8.7 meters. The entire superstructure of the bridge was removed.
In the preliminary project, the deck was designed from monolithic concrete. For three main reasons, the general contractor decided to build the deck for a partially assembled composite structure.
Metal beams supplied by OÜ Monik, prefabricated reinforced concrete deckplates were designed by AS E-Betoonelemendi, Merko Ehituse AS and OÜ EstKONSULT cooperation.
The construction of the deck structure remained in the winter, making the use of the prefabricated reinforced concrete element solution to allow the plate casting to be moved to the factory interior.
Preparatory work was started on the site in January 2010. Monolithic steel casting formwork was installed on April 19.
Reinforced concrete deckplates were manufactured in the Tamsalu factory by AS E-Betoonelement within one month.
In the case of finishing, the smooth surface of the mold remained flat from the bottom of the deck plates.
The significance of this project was the precision of the dimensions of deck panel elements, where tile tolerance was strictly controlled.
It is good to have a realistic project confirming that it is possible to make large-sized and precisely demanding elements for infrastructure facilities in the prefabricated reinforced concrete.

Kairet Luiga
Infrastructure products manager of AS E-Betoonelement

Vello Vares, AS Merko Ehitus Site Manager:
"The advantage of a assembled deck should be clearly highlighted in the event that the need for work under the bridge is completely eliminated.

Sirje Pilt, OÜ Langeproon Inseneriehitus CEO:
"Hydraulically isolated bridge deck was used by the cold-assembled system Servidek / Servipak GRACE Construction Products Ltd. (Road Technical Specification System No. 3). One of the advantages of this system is speed. It is not necessary to wait for 28 days for monolithic hardening.

13 buildings will participate in the competition “Concrete Building of the Year 2010”

Thirteen nominations were submitted to the competition “Concrete Building of the Year 2010” organised by the Concrete Association of Estonia (CAE) and the Association of Construction Material Producers of Estonia (ACMPE).

“This year’s competition of concrete buildings has been the least Tallinn-centred throughout the competition’s history,” said Mati Laurson, the Chairman of the Management Board of the CAE. “Our competition quite adequately reflects changes that have taken place in the construction market lately – the proportion of infrastructure objects and buildings financed by the state has grown,” Laurson added.

The Concrete Building of the Year 2010 nominees are the following:
1. Outdoor areas of the Estonian Road Museum – Varbuse, Kanepi Rural Municipality, Põlvamaa;
2. Residential building in Keila-Joa, Näkineiu tee 9 – Keila Rural Municipality, Harjumaa;
3. Residential building in Nõmme (Black house), Valguse tn 17 – Tallinn;
4. Residential building in Pirita, Vahtramäe tee 9 – Tallinn;
5. Office building of Jewe – Jõhvi;
6. Jõhvi Court House – Jõhvi;
7. Kersti Võlu’s Training Centre – Jõhvi;
8. Mäo traffic junction (Tarbija flyover, Mäo flyover, Vodja bridge, Valgma flyover, Valgma defence caisson, flyover of Mäo centre) – Järvamaa;
9. Reconstruction of the Kukruse-Jõhvi road section of Tallinn-Narva highway (km 156-163) into a first-class highway – Ida-Virumaa;
10. Science Centre AHHAA – Tartu;
11. Ski Stadium of Tehvandi Sport Center – Otepää, Valgamaa;
12. The traffic area of Ämari Air Base (runway, platforms, taxiways, waste water treatment plant) – Ämari, Vasalemma Rural Municipality, Harjumaa;
13. Business building, Ülikooli 2/2B – Tartu.

The purpose of the competition is to find and highlight buildings, the nice appearance and effective and economic realisation of which demonstrate the advantages and possibilities of concrete as a domestic material. Winning objects or procedures are those where the work of enterprises registered in Estonia and concrete materials delivered from Estonia have played an important role. Likewise, the professionalism and level of pretentiousness of the technical design and construction of the object, as well as its quality and innovativeness will be taken into consideration when choosing the winning object. The grand prize will be awarded to the author of the winning idea – the architect. The contracting entity of the object, technical designer, builder, and supplier of concrete products will also be recognised.

The jury of the competition held for the 11th time will include representatives of the Union of Estonian Architects, the Concrete Association of Estonia, the Estonian Association of Civil Engineers, the Estonian Association of Construction Entrepreneurs, the Association of Construction Material Producers of Estonia, the Estonian Association of Architectural and Consulting Engineering Companies, Kunda Nordic Cement, and construction journalism.

“The jury will start acquainting itself with the nominees,” said Peeter Kokk, the Chief Executive of the CAE.

The winner will be announced at the 11th Concrete Day in March 2011.

Composed based on the press release of 13 December from the Concrete Association of Estonia and the Association of Construction Material Producers of Estonia.

Turnover of building material producers up by 7%

Tea Taruste, Äripäev

The turnover of the producers of building materials increased by 7% in nine months in comparison with the past year. Enno Rebane, the Head of the Estonian Association of Building Material Producers, said that a surprise was served by the producers of concrete elements who have turned their production into a good export article.

“This year has been relatively similar to the last one. There has been a slight shift towards improvement but, as a whole, this is the result of the rise in export,” said Rebane. The domestic market is still in a negative situation despite the very poor indicators of last year that was used as a reference.

In nine months, the sales turnover of the companies belonging to the Estonian Association of Building Material Producers has increased by 7%, i.e. to EEK 3,978 million, in comparison with the same period last year.

Fresh concrete, paving stones, thermal insulation, wall and roof materials have been sold approximately in the same amount as last year. According to Rebane, the sale of crushed stone and sand are in the worst state.

“The obligation to use crushed igneous rock instead of crushed limestone for road construction in many places imposed by the Road Administration has an increasing effect. This obligation is imposed despite the fact that the use of crushed igneous rock has become unreasonable and road structures that have been taken apart show the good state of the old crushed stone base (for example in the road sections between Loo and Maardu as well as between Liiapeksi and Loobu). Unfortunately, it seems that nobody in the government cares about jobs in the slate industry or the taxes for mining and workforce that the state receives – in the case of imported materials these are all received by foreign states,” said Rebane.

A great surprise has been served by some producers of concrete elements who have once again benefited from export. “The material that is common in the domestic market has become a good export article. Export has been helpful in the case of concrete elements. Unfortunately, there are several companies in the concrete sector that are in a very bad situation,” said Rebane.

The rise in turnover is characteristic of the sale of building foams, plastic tubes and wooden windows.

During nine months in 2010, building materials were exported in the volume of EEK 1,899 million, which is approximately EEK 400 million more than during the same period in 2009. OÜ Krimelte, a producer of building foams, has the biggest export turnover.

Besides OÜ Krimelte, more than three quarters of the sales volume of building materials is exported by AS Tartu Maja Betoontooted and producers of opening fillings AS Saku Metall, AS Metus-Est and AS Fenestra; more than half of the turnover has been exported by the producer of limestone products AS Nordkalk, the producer of wall materials AS Aeroc, the producer of plastic tubes OÜ Haka Plast, the producer of roof products OÜ Monier, the producer of concrete additives OÜ Remei Baltica, and the producers of opening fillings AS Viking Window, AS Saajos and OÜ T-Tammer.

Turnovers of companies in 9 months in 2010 (in millions of kroons)
1. Krimelte OÜ 761
2. AS Saint-Gobain Ehitustooted   231
3. AS Pipelife Eesti 222
4. AS E-Betoonelement 218
5. AS Rudus 193
6. AS Nordkalk 167
7. AS Saku Metall 157
8. AS Tartu Maja Betoontooted 117
9. AS Silikaat 101
10. AS Viking Window 100
11. AS Metus-Est 97

How to protect ideas which makes additional value?

Birjo Must, Äripäev Online

Among Estonian entrepreneurs, the protection of ideas is not particularly widespread as a patent or utility model; in addition, there is not enough knowledge and skills to invent something new. "The idea behind the patent is to create a new value and you do not always have to invent a bike, sometimes ...

"The patent idea is to create a new value, sometimes, it is enough to add a new nuance or commercial idea to refresh the existing product," said Traugott Läänmäe, Head of the Physics and Electrical Expertise Department of the Patent Office.
According to him, there is no product that can be sold for a very long time without further developing it. "At the same time, with very small resources, it is possible to become a market leader," added Läänmäe.
The legal protection of industrial property, on his assertion, gives him confidence in the business and a competitive advantage, which should be protected before the product is placed on the market or disclosed.

The company receives protection against copying
According to Aare Lessuk, laboratory manager of AS E-Betoonelement factories, the competitive advantage of the invention is the protection as a utility model. "It protects against copying, and competitors can not just do exactly the same thing," he explained.
Protected ideas from E-Betoonelement have been developed by company engineers and have not been collaborated with research organizations, but in some cases it may be necessary, he added.

According to Lessuk,
E-Betoonelement was not thinking about selling and benefiting from protected ideas, but the invention is used only internally.
According to the head of the construction company AS Amhold, Arvu Mägi, mass production companies are indispensable to protect their own solutions.

The invention keeps the spirit alive
According to Mägi, Amhold's patenting of technical solutions and knowledge of other patents has become one of the usual parts of engineering work.
"The main goal is the creative process itself, and the fact that competitors will not block the company's activities by not patenting fundamental solutions through patents," he said.
"In Estonia, as a rule, we are applying for a utility model of protection, but in the countries of the European Union we are developing patents," he explained.

In recent years, activity has risen
In Estonia, the process of applying for the protection of intellectual property is normally organized, but it is unreasonably long-term.
According to Läänmäe, the need to protect inventions has become actively sought after in the last couple of years.

1. Creating an idea of value for a business is based on three skills:
The successful idea of developing a product or service (working with and analyzing information) - the ability to read industrial property documents - Problem solving skills, or how to invent, so that the invention benefits
the ability to read industrial property documents
- Problem solving skills, or how to invent, so that the invention benefits
2. The ability of an innovative idea or new product to make a profit. If you do a new way of things, you might find something better than your original goal.
3. An analysis of the product or service's past evolution in order to find the direction of further development that would allow the creation of a product that "speaks for itself" would be the key to profit making.
4. Customize your intellectual property strategy and need to protect your business needs. An intelligent idea is important for business development.
5. Innovative smart product development can link marketing and investment capital.
6. When considering the idea, then thinking of the solution, take into account the details, they determine the success of the product - uniqueness, utility, functionality, commercial idea.
7. The use of a designer only at the end of the product development process does not lead to success, collaboration between the designer and the engineer is successful.
8. Check if the features of the new idea match the features of the patent or utility model.
9. Search for solutions similar to databases that are already protected or for which applications have been submitted.
10. Keep track of product development and competition in your market niche. Make background studies and ask for an application form to be solicited by an expert at the Patent Office.
11. Find out how to get benefits (EAS).
Source: Traugott Läänmäe

Protected objects of the invention
Method - processes, technologies, measurement, control and signal processing methods used in production.
Device - machinery, apparatus, systems, tools, means of transport, building structures, consumer goods, parts with their own independent function, circuit diagrams, circuits.
Substance - materials, foodstuffs, individual compounds, drugs. The patent can also protect the combination of all three of the aforementioned objects of the invention, including a biological agent.

Forms of legal protection of inventions
The patent is valid in Estonia and in most countries for up to 20 years, and it extends to five years.
The same invention is protected as a utility model, such as a patent.
A state fee has to be paid upon filing a utility model registration application

Protected industrial property value
All trademarks, industrial designs, geographical indications, utility models and patents are part of the company's intangible assets on the company's balance sheet.

Breakthrough potential patent
Makes product or technology more effective about 1.5 times.
It is useful in many ways, it is useful in a market niche, there is a new commercial sense.
Responding to consumer and market expectations - this should create collaboration, be a smart product with practical output.
Important in the development of a company or its strategy or in the development of a product that gives it a significant competitive advantage.

A breakthrough utility model
there are many benefits.
Corresponds to consumer and market expectations.
Distinguish from an earlier product - it's better or a continuation of branding, a marketing-friendly solution.
A useful model with an inventive step that will meet patent protection requirements.

E-Betoonelement submitted the ROAD of the Estonian Road Museum as a nominee at the competition

E-Betoonelement submitted the ROAD of the Estonian Road Museum as a nominee at the competition

The outdoor area of the Estonian Road Museum – “Teeaeg”
Architects: Malle Jürgenson, Krista Lepland and Tea Tammelaan – Laika, Belka and Strelka OÜ
Maarja Kask, Ralf Lõoke, Karli Luik and Pelle-Sten Viiburg – Salto Arhitektuuribüroo OÜ
Location: Varbuse, Kanepi Rural Municipality, Põlvamaa
Proposal justification: This is the first project of the kind in the Baltic States where wall elements to be assembled of graphic concrete have been produced based on sample photographs.

Perpetuating pictures of the ROAD of the Estonian Road Museum on graphic concrete

Perpetuating photographs on facade surfaces in the graphic concrete technique is perhaps one of the most complicated methods of finishing in the industry of prefabricated concrete products. Good results require close co-operation between the architect and the manufacturer.

In order to achieve excellent results in producing graphic concrete, it is important to create a contrast between the cement stone of concrete and the hue of infillings. As graphic concrete is rather monochromatic and lacks of intermediate hues or the so-called “grey-hues”, this sets certain conditions for the choice of photographs. Often, suitable photographs also need pre-treatment before they can be used.

This, in turn, sets higher requirements for concrete technologists, who have to compose a suitable concrete recipe. The aim is to achieve as precise a realisation of the architect’s vision as possible.

The production of graphic concrete pictures also requires real mastery from plant workers. Panels, of which each is a small shred of a bigger picture, are like puzzle pieces forming a whole. The whole facade must be even and the continuation of the picture from one panel to another must be accurate and smooth. This sets higher requirements for production and construction tolerances. The work requires utmost precision and cognition of the whole.

In addition, the timely and masterly washing of the panels is very important. Washing off unhardened concrete particles from the panel surface is what generates the picture. Excessive or too little washing can significantly affect the quality of the picture. It is not possible to provide specific guidelines and the washers themselves have to perceive what is “correct”, thereby directly participating in the creation of the graphic concrete picture.

Achieving the best result requires full understanding between the architect, the customer and the producer, as well as time and the preparation of several model examples.

Highway Museum - Road

New book on concrete surfaces presented at the Estonian Building Center on 30 November

The Concrete Association of Estonia (CAE) will present a new book “BÜ4: Betooni pinnad” (BÜ4: Concrete Surfaces) on Tuesday, 30November, at 3 p.m. at the Estonian Building Centre.

This is the first comprehensive handbook in Estonian thoroughly introducing the characteristics and usage of concrete surfaces and giving clear guidelines on their classification and quality assessment.

The book will be introduced by:
- Toomas Laur from the Tallinn University of Technology: introduction, maintenance of concrete surfaces
- Viktor Mõisja from AS Merko Ehitus: in-situ concrete casting
- Mart Arro, AS E-Betoonelement: concrete elemental surfaces

This book with abundant illustrations is meant to be used by architects, builders and technical designers, as well as university lecturers and students. “BÜ4: Betooni pinnad” is a joint publication of the Concrete Association of Estonia and ET INFOkeskus AS that was published as a handbook at the beginning of November.

The presentation of “BÜ4 Betooni pinnad” will take place on 30November from 3 p.m. to 4 p.m. on the second storey of the Building Centre, Rävala pst 8, Tallinn. The presentation will be followed by a discussion at the coffee table.

To come to the presentation, we kindly ask you to register here:

More information
Concrete Association of Estonia, telephone 648 1918
Estonian Building Centre, telephone 660 4555